A double-end bending type fastening clamp for a stand and a wallboard, a plate stand connecting structure

Abstract

The application provides a double-head bending type fastening clamp for a stand and a wallboard and a plate-column connecting structure. The double-head bending type fastening clamp comprises a main body part with a first end and a second end opposite along the length direction; a pressing bending part is formed by bending the first end of the main body part, comprising a first elastic arm and a second elastic arm, the connection part of the first elastic arm and the second elastic arm is arranged at an angle and forms a protruding abutting part, the other end of the second elastic arm is a movable end, and the movable end abuts or is slidably supported on the main body part; a clamping bending part is formed by bending the second end of the main body part, and the clamping bending part has a clamping groove for clamping the side wall of the stand; a limiting protruding part is formed on the main body part and located between the second elastic arm and the second end. The double-head bending type fastening clamp has simple structure, fast installation, convenient disassembly and reliable fixation. The plate-column connecting structure has simple overall structure, and the connection is completed by only clamping the side wall of the stand by the fastening clamp and elastically pressing the wallboard by the abutting part, so that the construction efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of fastening connectors, specifically to a fastening clamp and plate-column connection structure for fixing plate-shaped components to column-shaped components, which is particularly suitable for the rapid installation and fixing of wall panels and columns in building decoration. Background Technology

[0002] In interior building construction, it is often necessary to fix wall panels to mounting grooves on the sides of columns. The most common fixing method in existing technology is a bolt-tightening structure: see attached [reference]. Figure 1-4 As shown, a pre-embedded nut 301 is pre-installed at a predetermined position on the wall panel 300. Then, a bolt 302 is screwed into the pre-embedded nut 301. By adjusting the extension length of the bolt 302, its end is pressed against the side wall 201 of the column 200, thereby fixing the wall panel 300. This bolt fixing method has the following drawbacks: 1. The installation process is complicated: it requires the pre-embedded nuts 301 to be installed in advance, which increases the prefabrication process and cost of the wall panel 300.

[0003] 2. Limited operating space: The gap between the wall panel 300 and the side wall 201 of the column is usually narrow. When adjusting the bolt 302, tools such as open wrenches are required, but the insufficient operating space makes it difficult to turn the wrench, making the installation difficult and time-consuming.

[0004] 3. Inconvenient disassembly: Disassembly also requires a wrench to rotate the 302 bolt in the opposite direction, which involves many steps and is inefficient. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a double-headed bending fastening clamp and a plate-column connection structure for connecting columns and wall panels. The double-headed bending fastening clamp offers advantages such as simple structure, quick installation, convenient disassembly, and reliable fixation. The overall structure of the plate-column connection is simple, completing the connection solely by clamping the column sidewall and elastically pressing the wall panel against the top, resulting in high construction efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-headed bending fastener for columns and wall panels, comprising: a main body having a first end and a second end opposite to each other along its length; a pressing bending part, formed by bending the first end of the main body, including a first elastic arm and a second elastic arm; the two ends of the first elastic arm are respectively connected to the first end and the second elastic arm, the connection between the first elastic arm and the second elastic arm is set at an angle and forms a protruding abutment, the other end of the second elastic arm is a movable end, and the movable end abuts or slidably supports the main body; and a clamping bending part, formed by bending the second end of the main body, clamping... The bending portion has a groove for clamping the side wall of the column; a limiting protrusion is formed on the main body and is located between the second elastic arm and the second end; wherein, when the movable end of the second elastic arm moves towards the first end under the action of an external force, the included angle of the top decreases and the height of the protrusion at the top increases, so as to press the wall panel located in the direction of the top; when the movable end of the second elastic arm moves towards the second end under the action of an external force, the included angle of the top increases and the height of the protrusion at the top decreases, so as to separate the top from the wall panel; and the movable end can be pulled to abut against the limiting protrusion to pull the double-headed bending fastening clamp whole out from between the column and the wall panel.

[0007] Furthermore, the main body has a first side and a second side that are disposed opposite to each other, with the pressing bending part disposed toward the first side and the clamping bending part disposed toward the second side.

[0008] Furthermore, the slot is a U-shaped slot, and the open end of the clamping bend extends outward to form a flared plate to constitute a guide opening.

[0009] Furthermore, the first elastic arm extends upward at an angle relative to the main body, and the second elastic arm extends downward at an angle relative to the first elastic arm, so that the first elastic arm and the second elastic arm form an inverted V-shaped bending structure.

[0010] Furthermore, when the movable end of the second elastic arm abuts against the limiting protrusion, the angle between the first elastic arm and the second elastic arm is at its maximum.

[0011] Furthermore, the limiting protrusion is formed by punching and bending the middle part of the main body towards the side where the pressing and bending part is located, and a through hole is formed on the main body corresponding to the position of the limiting protrusion.

[0012] Furthermore, the movable end is provided with a notch for limiting the entry of the protrusion.

[0013] Furthermore, the main body, the pressing and bending part, the clamping and bending part, and the limiting protrusion are integrally stamped and bent from the same metal sheet.

[0014] On the other hand, a plate-column connection structure includes a column, a wall panel, and a double-headed bending fastening clamp. The column has a side wall and a receiving groove for accommodating the wall panel and the double-headed bending fastening clamp. The clamping groove of the bending part is clamped to the side wall of the column, and the pressing top of the bending part elastically presses against the side of the wall panel to fix the wall panel in the receiving groove of the column.

[0015] The double-headed bending fastening clamp and plate-column connection structure provided by this invention has the following advantages compared with existing bolt fixing methods: 1. Tool-free installation: No bolts, nuts, or wrenches are required. Installation and disassembly can be completed simply by manually squeezing or pulling the second elastic arm. It requires minimal operating space and is especially suitable for narrow operating environments.

[0016] 2. High installation efficiency: no need for pre-embedded nuts or rotating adjustment bolts. The installation process is simplified to two steps: pushing in and pressing, and disassembly is simplified to one step: pulling out, which greatly shortens the construction time.

[0017] 3. It has strong self-locking adaptability. The inverted V-shaped elastic structure of the pressing and bending part can automatically adapt to the slight changes in the gap between the wall panel and the column, maintain a stable pressing force, and is reliable and not easy to loosen.

[0018] 4. Wide applicability: The clamping slots for the bending part can adapt to different shapes of column sidewalls, and the pressing height of the bending part can also be adjusted according to the thickness of the wall panel, which has good versatility.

[0019] 5. Strong wind pressure resistance and anti-loosening performance: In practical applications, both ends of the wall panel are usually embedded in the receiving groove of the column, and each end is symmetrically fixed by at least two double-headed bending fasteners. When encountering strong winds that cause instantaneous impact loads on the wall panel, the impact force will be evenly distributed to the four double-headed bending fasteners at the four corners of the wall panel. Since the instantaneous pressure borne by a single double-headed bending fastener is greatly reduced, it is insufficient to overcome the elastic self-locking force of the pressing bending part, thus effectively avoiding the risk of retraction or loosening at the top due to excessive local stress, and significantly improving the stability and reliability of the connection structure under dynamic wind loads. Attached Figure Description

[0020] Figure 1 A structural diagram showing the building's components, wall panels and columns.

[0021] Figure 2 This is a schematic diagram of the assembly of columns and wall panels (with pre-embedded nuts and bolts) in the prior art.

[0022] Figure 3 This is a schematic diagram of the assembly of columns and wall panels (with pre-embedded nuts and bolts) from another perspective in the existing technology.

[0023] Figure 4for Figure 3 Enlarged view of point A (i.e., the bolt is tightened against the side wall of the column).

[0024] Figure 5 This is a schematic diagram of the assembly of the column, wall panel, and double-headed bending fastener in this invention.

[0025] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0026] Figure 7 This is a schematic diagram of the double-headed bending fastening clamp in this invention.

[0027] Figure 8 This is a schematic diagram of the double-headed bending fastener from another perspective.

[0028] Figure 9 This diagram shows steps S1 to S4 of the assembly process for the plate-column connection structure in this invention.

[0029] Figure 10 This diagram shows steps S5 to S6 of the assembly process for the plate-column connection structure in this invention.

[0030] Reference numerals: Double-headed bending fastener 100, main body 1, first end 11, second end 12, first side 13, second side 14, pressing bending part 2, first elastic arm 21, second elastic arm 22, movable end 221, top abutment 23, notch 24, clamping bending part 3, slot 31, flared plate 32, limiting protrusion 4.

[0031] Column 200, side wall 201, receiving groove 202 Wall panel 300, embedded nut 301, bolt 302. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see the appendix Figure 1 , 5 As shown in Figure 9, this invention provides a double-headed bending type fastening clamp 100 for use between a column 200 and a wall panel 300, comprising: The main body 1 has a first end 11 and a second end 12 that are opposite each other along the length direction; The pressing and bending part 2 is formed by bending the first end 11 of the main body part 1, including a first elastic arm 21 and a second elastic arm 22. The two ends of the first elastic arm 21 are respectively connected to the first end 11 and the second elastic arm 22. The connection between the first elastic arm 21 and the second elastic arm 22 is set at an angle and forms a protruding abutment top 23. The other end of the second elastic arm 22 is a movable end 221, and the movable end 221 abuts against or is slidably supported on the main body part 1. The clamping bending part 3 is formed by bending the second end 12 of the main body part 1, and the clamping bending part 3 has a slot 31 for clamping the side wall 201 of the column; The limiting protrusion 4 is formed on the main body 1 and is located between the second elastic arm 22 and the second end 12; When the movable end 221 of the second elastic arm 22 moves toward the first end 11 under the action of an external force, the included angle of the top 23 decreases and the protrusion height of the top 23 increases, so as to press the wall panel 300 located in the direction of the top 23; when the movable end 221 of the second elastic arm 22 moves toward the second end 12 under the action of an external force, the included angle of the top 23 increases and the protrusion height of the top 23 decreases, so as to separate the top 23 from the wall panel 300; and the movable end 221 can be pulled to abut against the limiting protrusion 4, so as to pull the double-headed bending fastening clamp 100 out from between the column 200 and the wall panel 300. Since the limiting protrusion 4 forms a blocking position on the movable end 221, the operator can pull the fastening clamp out in one go without additional support.

[0034] The double-headed bending fastening clip 100 of the present invention has the following beneficial effects: 1. Quick installation: Simply push the fastening clip into the gap between the column 200 and the wall panel 300, and then press the movable end 221 of the second elastic arm 22 towards the first end 11 to complete the fixation. No bolts, nuts or wrenches are required. The installation operation space requirement is low, which significantly shortens the working time.

[0035] 2. Self-locking is reliable. The pressing and bending part 2 uses the angle change between the first elastic arm 21 and the second elastic arm 22 to adjust the height of the top 23. When the movable end 221 moves towards the first end 11, the angle decreases, the top 23 rises and presses against the wall panel 300, forming an elastic self-locking, which is stable and reliable and can adapt to slight dimensional deviations in the gap between the wall panel 300 and the column side wall 201.

[0036] 3. Easy to disassemble. Simply pull the movable end 221 towards the second end 12 until it reaches the top 23, which will lower the height and separate it from the wall panel 300. Continue to pull the movable end 221 until it abuts against the limiting protrusion 4, and then the entire fastening clamp can be pulled out as a whole. Disassembly is achieved in one action, which is highly efficient.

[0037] 4. Simple structure and low cost: The double-headed bending fastening clamp 100 is an integrated bending and forming structure, requiring no additional parts and with a simple manufacturing process.

[0038] In this invention, the pressing bending part 2 and the clamping bending part 3 are respectively arranged facing different sides. The main body 1 has a first side 13 and a second side 14 arranged opposite to each other. The pressing bending part 2 is arranged facing the first side 13, and the clamping bending part 3 is arranged facing the second side 14. The pressing bending part 2 and the clamping bending part 3 are arranged back to back. After installation, the pressing bending part 2 presses upward against the wall panel 300, and the clamping bending part 3 clamps downward against the side wall 201 of the column. The two do not interfere with each other, making full use of the limited space between the column 200 and the wall panel 300, resulting in a reasonable spatial layout.

[0039] In this invention, the slot 31 is a U-shaped slot. The U-shaped slot structure can fit tightly against the side wall 201 of the column, providing a firm grip and preventing slippage. Of course, it can also be modified according to the shape of the side wall 201 of the column, for example, it can also be a V-shaped slot or an arc-shaped slot.

[0040] In this invention, the open end of the clamping bending portion 3 extends outward to form a flared plate 32, thereby constituting a guide opening. The flared plate 32 forms a trumpet-shaped guide opening, making it easier for the double-headed bending fastener 100 to snap into the side wall 201 of the column, eliminating the need for precise alignment during installation and further reducing operational difficulty.

[0041] In this invention, the first elastic arm 21 extends upward at an angle relative to the main body 1, and the second elastic arm 22 extends downward at an angle relative to the first elastic arm 21, so that the first elastic arm 21 and the second elastic arm 22 form an inverted V-shaped bending structure. The inverted V-shaped bending structure has good elastic deformation characteristics, a significant change in the included angle after being subjected to force, a large range of height adjustment to the top 23, and strong adaptability to changes in the gap of the wall panel 300. In addition, when the movable end 221 of the second elastic arm 22 moves towards the first end 11, the included angle decreases, and the elastic restoring force of the second elastic arm 22 causes the movable end 221 to have a reverse movement tendency, forming a stable self-locking torque.

[0042] In this invention, when the movable end 221 of the second elastic arm 22 abuts against the limiting protrusion 4, the angle between the first elastic arm 21 and the second elastic arm 22 is at its maximum. At this time, the angle is at its maximum and the height of the top 23 is at its minimum, and the wall panel 300 is completely released. At the same time, the movable end 221 is blocked by the limiting protrusion 4, forming a force point. When the operator pulls the movable end 221, the entire double-headed bending fastening clamp 100 can be pulled out together, making the disassembly action smooth and effortless.

[0043] In this invention, the limiting protrusion 4 is formed by stamping and bending the middle part of the main body 1 towards the side where the pressing and bending part 2 is located. A through hole is formed on the main body 1 corresponding to the position of the limiting protrusion 4. The limiting protrusion 4 and the main body 1 are integrally stamped, eliminating the need for welding or additional assembly, resulting in high processing efficiency and a simple process. The stamped through hole reduces the weight of the double-headed bending fastener 100, while also saving materials, which conforms to the lightweight design concept.

[0044] In this invention, the movable end 221 has a notch 24 for the limiting protrusion 4 to enter. The notch 24 can engage with the limiting protrusion 4 to prevent the movable end 221 from sliding sideways or disengaging from the limiting protrusion 4 during pulling. When the movable end 221 is pulled to the limiting protrusion 4, the notch 24 engages, generating a feedback that allows the operator to feel a clear sense of positioning.

[0045] In this invention, the main body 1, the pressing and bending part 2, the clamping and bending part 3, and the limiting protrusion part 4 are integrally stamped and bent from the same metal sheet. The entire double-headed bending fastener 100 is made from a single sheet through stamping and bending processes, which is suitable for mass production and has low cost; at the same time, the overall structure has no welding points and the overall strength is reliable.

[0046] As attached Figure 5-6 As shown, the present invention also provides a plate-column connection structure, including a column 200, a wall panel 300, and a double-headed bending fastening clamp 100 for connecting the column 200 and the wall panel 300. The column 200 has a side wall 201 and a receiving groove 202 for accommodating the wall panel 300 and the double-headed bending fastening clamp 100. The slot 31 of the clamping bending part 3 clamps the side wall 201 of the column 200. The abutting top 23 of the pressing bending part 2 elastically presses against the side of the wall panel 300 to fix the wall panel 300 in the receiving groove 202 of the column 200.

[0047] Please see the appendix Figure 9-10 As shown, the assembly process of the plate-column connection structure includes the following steps: S1: Prepare column 200, wall panel 300, and multiple double-headed bending fasteners 100: Column 200 has a receiving groove 202 for accommodating wall panel 300 and double-headed bending fasteners 100, and one side of receiving groove 202 is column side wall 201.

[0048] S2: Place the wall panel 300: Place the wall panel 300 into the receiving groove 202, so that one side of it is close to the inner wall of the receiving groove 202, and the other side forms a gap space with the side wall 201 of the other side of the receiving groove 202 (this gap is used to accommodate the pressing and bending part 2 and the main body part 1 of the double-headed bending fastening clamp 100).

[0049] S3: Initial insertion of double-headed bending fastener 100: Align the clamping bending part 3 of the double-headed bending fastener 100 with the column side wall 201, and use the guide opening of the flared plate 32 to insert the slot 31 into the column side wall 201. At this time, the main body 1 is located in the gap between the wall panel 300 and the inner wall of the receiving groove 202 on the other side, and the top 23 of the pressing bending part 2 has not yet contacted the wall panel 300.

[0050] S4: Locking and pressing the bent part 2: Using a simple tool (such as a flathead screwdriver), press the movable end 221 of the second elastic arm 22 towards the first end 11. At this time, the included angle of the top 23 decreases and the height of the protrusion increases. Finally, the top 23 presses against the side of the wall panel 300. As the movable end 221 continues to move forward, the second elastic arm 22 and the main body 1 form an elastic self-locking mechanism. The wall panel 300 is pressed into the receiving groove 202, and the fixing is completed.

[0051] S5: Pull out the fastening clip during disassembly: Use a tool to hook the movable end 221 of the second elastic arm 22 and pull it towards the second end 12. At this time, the included angle of the top 23 increases and the height of the protrusion decreases, and the top 23 separates from the wall panel 300. S6: Continue to pull the movable end 221 to make it abut against the limiting protrusion 4. The notch 24 on the movable end 221 fits into the limiting protrusion 4. At this time, apply force outward with the movable end 221 as the force point, and the entire double-headed bending fastening clamp 100 can be pulled out from between the column 200 and the wall panel 300. Then the wall panel 300 can be removed.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-headed bending fastener for fastening columns and wall panels, characterized in that: include: The main body has a first end and a second end that are opposite each other along the length direction; The pressing and bending part is formed by bending the first end of the main body and includes a first elastic arm and a second elastic arm. The two ends of the first elastic arm are respectively connected to the first end and the second elastic arm. The connection between the first elastic arm and the second elastic arm is set at an angle and forms a protruding abutment. The other end of the second elastic arm is a movable end, and the movable end abuts against or is slidably supported on the main body. The clamping bending part is formed by bending the second end of the main body, and the clamping bending part has a slot for clamping the side wall of the column; A limiting protrusion is formed on the main body and is located between the second elastic arm and the second end; When the movable end of the second elastic arm moves toward the first end under the action of an external force, the included angle at the top decreases and the height of the protrusion at the top increases to press against the wall panel located at the top. When the movable end of the second elastic arm moves toward the second end under the action of an external force, the included angle at the top increases and the height of the protrusion at the top decreases, causing the top to separate from the wall panel. Furthermore, the movable end can be pulled to abut against the limiting protrusion to pull the double-headed bending fastening clamp out from between the column and the wall panel.

2. The double-headed bending fastener for columns and wall panels according to claim 1, characterized in that: The main body has a first side and a second side that are arranged opposite to each other, with the pressing bending part facing the first side and the clamping bending part facing the second side.

3. The double-headed bending fastener for columns and wall panels according to claim 2, characterized in that: The slot is a U-shaped slot, and the open end of the clamping bend extends outward to form a flared plate to constitute a guide opening.

4. The double-headed bending fastener for columns and wall panels according to claim 1, characterized in that: The first elastic arm extends upward relative to the main body, and the second elastic arm extends downward relative to the first elastic arm, so that the first elastic arm and the second elastic arm form an inverted V-shaped bending structure.

5. The double-headed bending fastener for columns and wall panels according to claim 1, characterized in that: When the movable end of the second elastic arm abuts against the limiting protrusion, the angle between the first elastic arm and the second elastic arm is at its maximum.

6. The double-headed bending fastener for columns and wall panels according to claim 1, characterized in that: The limiting protrusion is formed by punching and bending the middle part of the main body towards the side where the pressing and bending part is located, and a through hole is formed on the main body corresponding to the position of the limiting protrusion.

7. The double-headed bending fastener for columns and wall panels according to claim 1, characterized in that: The movable end has a notch for limiting the entry of the protrusion.

8. The double-headed bending fastener for columns and wall panels according to any one of claims 1 to 7, characterized in that: The main body, the pressing and bending part, the clamping and bending part, and the limiting protrusion part are integrally stamped and bent from the same metal sheet.

9. A plate-column connection structure, characterized in that: The device includes a column, a wall panel, and a double-headed bending fastener for the column and the wall panel as described in any one of claims 1 to 8. The column has a side wall and a receiving groove for accommodating the wall panel and the double-headed bending fastener. The slot holding the bending portion is clamped to the side wall of the column, and the top of the pressing bending portion elastically presses against the side of the wall panel to fix the wall panel in the receiving groove of the column.

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